Christopher, fifteen years old, stands beside Mrs Shears’ dead dog. It has been speared with a garden fork, it is seven minutes after midnight and Christopher is under suspicion. He records each fact in the book he is writing in an attempt to solve the mystery of who murdered Wellington.
Christopher has an extraordinary brain. He is exceptional at maths but ill-equipped to interpret everyday life. He has never ventured alone beyond the end of his road, detests being touched and distrusts strangers. But now his detective work, forbidden by his father, takes him on a frightening journey that turns his whole world upside down.